Pressure Converter

Free Pressure Converter — Convert PSI, Bar, Pascal, & More Instantly

Convert pressure between any units instantly with OmniConverter's free online pressure converter. Supports PSI, bar, pascal, atmosphere (atm), and torr. Whether you're checking tyre pressure, monitoring weather, working in HVAC, or solving an engineering problem, our tool delivers precise, instant pressure conversions.

How It Works

Convert in three simple steps.

1

Enter Your Pressure Value

2

Select Source and Target Pressure Units

3

Get Your Converted Pressure Reading

Popular Pressure Conversions

Common Benchmarks

Reference

1 PaPa

1 Pa

Reference

1 Pabar

0.00001 bar

Reference

1 Paatm

0.0000098692 atm

Reference

1 Papsi

0.0001450377 psi

Reference

1 PaTorr

0.0075006376 Torr

Real-World Use Cases

Pressure conversion is used for checking and inflating tyre pressure (PSI vs bar), industrial and engineering applications (PSI), scuba diving (bar and atm for tank and ambient pressure), and HVAC systems (inches of water column, Pa).

Frequently asked questions

Quick answers to common conversion questions

How do I convert pascals to bars?+

Divide pascals by 100,000 to get bars.

What is PSI?+

PSI means pounds per square inch, commonly used in tires and hydraulic systems.

How do I convert atm to kPa?+

Multiply atm by 101.325 to get kilopascals.

What is a Torr?+

A Torr is a unit of pressure based on millimeters of mercury, often used in vacuum work.

Can I convert bar to psi?+

Yes. Multiply bar by 14.5038 to get psi.

Why are there many pressure units?+

Different fields use different standards, such as engineering, meteorology, and chemistry.

What is a standard atmosphere?+

One atmosphere is about 101,325 pascals, roughly air pressure at sea level.

How do I convert mmHg to atm?+

Divide mmHg by 760 to estimate atmospheres.

Does pressure conversion depend on altitude?+

The unit conversion itself is fixed, but real-world pressure varies with location and altitude.

Which pressure unit is most common in science?+

Pascals are the SI unit and are widely used in scientific and engineering contexts.

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